iiardman



No. 607,367. Patented July I2, I898. R. B. HARDMAN.

APPARATUS FOR EXTBACTING OIL.

(Application filed Aug. 23,1897.)

2 Sheets-Sheet I.

(No Model.)

Bo 911 Po 1 mam) No. 607,367. Patented July I2, I898. n. B. HARDMAN.

APPARATUS FOR EXTRACTING OIL.

(Application filed Aug. 23,1897.)

(No Model.) V 2 Shets-Sheei 2.

P v F I a i:

F G GO 7 O C Q r N N U g @zzxjtziim UNITED STATES PATENT OFFICE.

RICHARD l3. HARDMAN, OF BURY, ENGLAND.

APPARATUS FOR EXTRACTlNG OIL.

SPECIFICATION forming part of Letters Patent No. 607,367, dated July 12,i898.

Application filed Augu t 23, 189 7.

Impurities, of which the following is a specification. 7

My invention relates to apparatus for clearing fibers, such as wool orcotton-waste, from grease and impurities. For this purpose I pass thefibers in form of a thick sliver through petroleum spirit, carbonbisulfid, or other suit able solvent contained in a closed tank, thesliver being moved along the floor of the tank by traveling chains orbands, with scrapers bearing on its upper surface. The traveling chainsor bands are arranged with the pulleys, around which they pass, insections, between each pair of which is an adjustable pair ofpressing-rollers, through which the sliver is passed. Where thepressing-rollers occur, the tank is deepened, so as to provide recessesin which collect solid impurities squeezed out of the sliver. The sliverafter passing along the tank issues between a final pair ofpressing-rollers and may be then led to suitable drying apparatus.

Figure l of the accompanying drawings is a longitudinal section offiber-clearing apparatus according to my invention. Figs. 2 and 3 aretransverse sections on the lines 2 2 and 3 3, respectively, of Fig. 1.Fig. 4 shows, to an enlarged scale, the chain-wheel and part of thetraveling chain. Fig. 5 is a longitudinal section of a modification.

Referring first to Figs. 1 to 4, inclusive, the sliver of fiber to becleansed being fed at A is carried onward by the spiked traveling chainsB over a perforated floor 0 through the spirit in the tank D, which hasdeep places E for deposit of impurities, these deep places havingopening F for emptying them provided with suitable cocks or valves. (Notshown.) The sliver in its course passes between pairs ofpressing-rollers G and finally issues from the tank at H and is conveyedto a heated chamber, where the spirit is evaporated from Serial No.649,247. (No model.)

it and led to a condenser to be recovered. The upper pressure-rollers Gare mounted in yielding bearings, (not shown,) which may be of any usualor suitable construction and are held down upon the sliver with ayielding pressure'by weighted levers g, which bear upon vertical rods orarms 9 which in turn rest upon the bearings of the upper rollers G.

In the modification shown in Fig. 5 instead of the chains for moving thesliver pairs of endless traveling pervious aprons K are em ployed, thesliverbeing carried between them.

The solvent is introduced into the apparatus through a pipe M near thelast pair of pressing-rollers and overflows through a pipe L back to aretort, carrying with it the greasy matters which have been extractedfrom the material passed through the machine. The solvent is thenevaporated and after being condensed returns to the supply-pipe M, aconstant circulation of solvent being thus maintained.

Having thus described the nature of this invention and the best means Iknow for carrying the same into practical effect, I claim In anapparatus for clearing fibers from grease and impurities, thecombination with a continuous tank having an inlet at one end and anoverflow at the other end and arranged to permit an uninterrupted flowof solvent from the fiber-discharge end to the fiber-feed end thereof,of perforated flooring arranged in the tank, a series of spiked endlesscarriers successively arranged in the tank above the perforated flooringand operating to drag the fibers thereover, pressing-rollers arrangedbetween the adjacent ends of the endless carriers, and deep pocketsformed in the bottom of the tank beneath the pressing-rollers forcollecting solid impurities, substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 10th day of August, A. D.1897.

RICHARD B. HARDMAN.

Witnesses:

ROBERT JACKSON, GEORGE DENIs HARDMAN.

